The Big Time Prank Party Bag comes in a large balloons gift bag with rope handles and contains:

whoopie cushion

Chinese finger trap - dare friends to insert a finger into each end of the tube. They will struggle and pull to get their fingers out, but all this does is make the weave painlessly grip their fingers tighter! Releasing them is easy! Gently push the trap at both ends to make it shorter and fatter again!